Looks like its getting power. But the picture looks bad. Tried jiggling the cable to the top of the tv and on the board to the right. Just a little to see if it would do anything. Nothing. Thanks for your help
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Re: Bad picture Insignia NS-39L700A12
reseat the lvds cable on both sides a few times and pray for it to clear up. -
Re: Bad picture Insignia NS-39L700A12
Did that. Still the same thingComment
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Re: Bad picture Insignia NS-39L700A12
If I buy another main board. Do you think this would fix the problem ???Comment
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Re: Bad picture Insignia NS-39L700A12
I wouldn't risk it. There is a vertical line going down the screen too. Try flexing and squeezing around the frame a little (tab bonds). If that doesn't yield nothing, I'd part it out or bin it. Those Insignias are cheap made.Comment
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Re: Bad picture Insignia NS-39L700A12
I took apart the sheild around it. Press each ribbon slightly. You sure its a tab bond insure. How can I tell if its a bad main board ???
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Re: Bad picture Insignia NS-39L700A12
I just want to make sure before I scrap this tvComment
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Re: Bad picture Insignia NS-39L700A12
press on some of them tabs while tv is on and see if anything goes away i have seen a few people find bad caps on that arrest board. i think thats what its called. the board that has the tabs connected to it, i seen a few people find bad smd caps and replaced them and it worked, it was really amazing because i didnt anything on that board went to faultComment
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Re: Bad picture Insignia NS-39L700A12
Yeah pressed on the boards too. Nothing.Comment
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I'm not sure what to do next and came here since y'all helped me fix a 50" plasma TV back in 2014, which is still working!
A friend gave me an Insignia NS-50DR620NA18 50" TV that suddenly developed large vertical lines on it. He said he had no idea what might have caused it and has replaced it with a larger TV. He was going to throw it away.
I did not notice any bulged or leaking caps on any board, the voltages produced by the power supply match the voltage that the pins are marked. The backlight leds are working. I have tried cleaning the ribbon cables... -
Hi guys! I realized you have a lot of knowledge here so i am hoping you could point me in right direction with my odd issue.
The Tv is a Philips 58PUS8545/12, it had no picture but working backlights.
Original T-con:
Opened the Tv and tested to unplug one ribbon cable at a time. With this test i could see that i got fine picture on both halves as long as there was only one ribbon cable connected, with two connected picture were gone.
First replacement T-con:
I thought it might be t-con and ordered new t-con from china(supposedly tested)... -
This was my main TV for the last 6 years. I'm not inclined to throw out a $2600 TV so quickly so I'm trying to investigate the issue.
Problem
TV was disconnected from power for 6 months during construction. When I plugged it yesterday picture was fine, after 30 seconds it dimmed then started developing horizontal lines, picture then starts to ghost vertically until it degrades into vertical streaks. TV always displays a perfect picture when cold. I can unplug TV for 5 minutes and plug it back in and picture is restored for 20 seconds. I can also keep it in standby mode... -
When i power on the tv a "please wait" image appears then goes away then nothing after that only sound
When i was removing the back cover i heard a rattle.
Removed the metal plate and the heat sink was off (see pic)
would this cause a no picture/image issue?
What is used to put back the heat sink
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Hi, I have a Samsung UE50TU with:
- sound and backlight, but no picture
- when it arrived, it had a picture for a few seconds
- it keeps rebooting
- without ribbon cable between the two panel boards, it does not reboot but I have no picture
- without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
- when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.
- without cable between mainboard and lcd panel and with a jumpered...
Comment